It's been a little under the radar, but AT&T Mobility's been in contract talks with the Communications Workers of America on behalf of some 20,000 unionized workers, and things haven't been going so well -- in fact, the CWA just voted to authorize a strike if upcoming negotiations don't improve. The union's current contract actually expires tonight at midnight, but the strike won't take place until the union's executive board approves and the CWA president sets a date. For its part, AT&T says it maintains a good relationship with its unions -- it has more unionized workers than any other carrier -- and that the vote is just another part of the process, but that it's prepared for all contingencies, including a strike. We'll see what happens, stay tuned.